Let's divide 398365 by 75
We want to figure out the number of times 398365 can be divided by 75.

Step 1:
75 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 75

Advancing to step 2:
If we divide 39 by 75, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 75

On to step 3:
75 goes into 398 5 times with a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 375 from 398 leaves us with 23.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 75

Advancing to step 4:
75 can be fit into 233 3 times, resulting in a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtracting 225 from 233 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 75

Going ahead to step 5:
If we divide 86 by 75, we get 1 and a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 531.0
Subtracting 75 from 86 leaves us with 11.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 75

On to step 6:
When dividing 115 by 75, we get 1 with a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 5311.0
Subtract 75 from 115 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 7:
75 goes into 400 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 5311.5
If we subtract 375 from 400, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
If we divide 250 by 75, we get 3 and a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 5311.53
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
75 goes into 250 3 times with a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 5311.533
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The quotient of the division is 5311.533, and the remainder is 0.0025.